A biologist discovers a new unicellullar organism that possesses more than two flagella and two small, but equal-sized, nuclei. The organism has reduced

mitochondria (mitosomes), no chloroplasts, and is anaerobic. To which clade does this organism probably belong?

#Question id: 11256

#Section 4: Behavioural Ecology

Inferences built on the idea that evolutionarily older and younger characters should be found among close relatives if they are linked by evolution has been elaborated into a branch of evolutionary biology known as __________.

#Question id: 11257

#Section 4: Behavioural Ecology

Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.

#Question id: 11258

#Section 4: Behavioural Ecology

In order for mimicry to be effective in protecting a species from predation, it must

#Question id: 11259

#Section 4: Behavioural Ecology

The problem of __________ can be stated as: "given that time and resources are limited, how can the organism best use them to achieve its maximum possible evolutionary fitness?"

#Question id: 11261

#Section 4: Behavioural Ecology

Which of the following kinds of social interactions cannot be favoured by natural selection under any circumstance?

#Question id: 11262

#Section 4: Behavioural Ecology

When a social organization consists of cooperative individuals, selection will always favor individuals that increase their personal reproductive success by __________.